Difference Engine No. 1
circa 1832
circa 1832
1610; 1923
1834-1836
1775-1799 (original); 1900-1907 (model)
1839 (original); circa 1988 (replica)
1831
1831
1833
1838
1934
1772 (original); 1919 (model)
1838
1705-1737
1838
1835
1830
1837
2000-100 BCE
4000-2001 BCE
1832
1839
1830
1837
1955; 1830
1836
1863-7
c.1837
1870-1877
1830
1837
1837
1830-1835
1893-4
1830
1835
1832
1835
1833
1860-1920
1836-1839
1938; (1838)
1836-1839
1832
1839
circa 1830s
1832
1838
1837
1834
1834